Island



UNITED STATES PATENT OFFICE.

B. G. DAWLEY, OE NORTH PROVIDENCE, RHODE ISLAND, ASSIGNOR TO Z. ALLEN,OF

NORTH PROVIDENCE, RHODE ISLAND.

LOOM.

Specification of Letters Patent No. 16,306, dated December 28, 1856.

To all whom t may concern:

Be it known that I, BENJAMIN G. DAw- LEY, a citizen of the UnitedStates, residing in the town of North Providence, in the State of RhodeIsland, have invented a new and useful Improvement in Connecting TwoSeparate Yarn-Beams in One Loom for Wveaving fide Cloths from TwoCombined Warps, a full and exact description of which is herein given,accompanied by a drawing thereof.

In the process at present adopted for weaving cloths of the width ofmore than five or six quarters of a yard, the web is composed of two ormore sections of warp combined together in the loom. These sections ofthe warp are made thus narrow for the convenience of the workmen inreaching over the selvages to mend the threads that may become broken inthe operation of sizing and dressing the yarn. It is practically foundto be impossible to wind precisely an equal length of yarn upon eachbeam in the process of dressing. Consequently, when the warp yarn isunwound and given off therefrom, during the operations of weaving, oneside of every piece of wide cloth, thus composed of two or more combinedsections, has a loose, bagging selvage. Attempts to remedy thisimperfection have hitherto proved unsuccessful; and for this reason suchwide cloths are less valuable, and nearly unlit for certain uses, suchas painted floor cloths, oil cloths, sheets for beds &c. In addition tothis disadvantage, the unequal tension on the tighter sections of thewarp causes the threads to break more frequently while being woven intothe fabric, and the labor and cost of weaving are thereby enhanced.

To obviate these imperfections in weaving wide cloths, is the object ofthe improvenient herein specified.

The two yarn beams are represented in the drawing by A and B; which areslipped over a stout iron rod, C, C, that serves as a common aXis forboth of them. These two beams are connected together by a smallintermediate bevel wheel, D, the teeth of which are designed to besimultaneously engaged with the teeth of each of the bevel wheels E, E,attached to the approximated heads of the two yarn beams. Thisintermediate bevel wheel, D is sustained between `the geared heads ofthe two yarn beams by a circular plate or disk of cast iron, F, whichhas freedom of motion to revolve with the yarn beams on thc common axisC.

To produce the reaction necessary to hold back the warp yarn during theprocess of weaving, a friction strap or cord may be applied to the plateI*`,-or any other contrivance adapted for this purpose.

By means of the intermediate wheel, D, the two yarn beams A and B, areso peculiarly connected together that the resistance of the friction onthe plate Eis distributed equally to the threads of the warp yarn woundon each of them, whereby both of the combined sections of the warp yarnare let off evenly, to produce uniform selvages of the fabric, althoughthere may be a difference in the circumference of the beams.

What- I claim as my invention and desire to secure by Letters Patent,is-

The use of an intermediate wheel, D, or wheels, to balance and regulatethe tension in the delivery of the warp from two or more yarn beamscombined together to form one webb of wide cloth, substantially as abovedescribed.

Providence, July lst, 1856.

BENJN. G. DA`WLEY.

Witnesses:

VILLIAM D. ELY, PHILIP SCOTT.

